Which of following is correct I. In a population, birth rate and death rate refer to per capita birt

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11.Organisms and Populations

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Which of the following is correct

$I.$ In a population, birth rate and death rate refer to per capita births and death respectively

$II.$ In nature, we rarely find isolated single individuals of any species

$III.$ The size of population for any species is stable phenomena

$IV.$ Ecological effects of any factors on a population growth are generally reflected in its size/population density

$I$ and $II$

$II$ and $III$

$I, II$ and $III$

$I, II$ and $IV$

Solution

Size of population keeps on changing due to various factors or phenomena like birth rate, death rate, emigration or immigration. So, it is a dynamic phenomena rather than stable

Standard 12

Biology

Any species growing …$A$… under unlimited resource conditions can reach enormous population densities in a short time. Darwin showed how even $\ldots$ $B$… growing animal like elephant could reach enormous numbers in absence of check and that characteristics of organism is called $C$

Choose the correct option for $A , B$ or $C$ respectively

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Population growth curve in most animals, except humans is

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The process by which individuals are included into a population is known as

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Asymptote in a logistic growth curve is obtained when

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(NEET-2017)

If a population growing exponentially double in size in $3$ year, what is intrinsic rate of increase $(r)$ of the population ? $(e = 2.71828)$

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Solution

Similar Questions

Population growth curve in most animals, except humans is

The process by which individuals are included into a population is known as

Asymptote in a logistic growth curve is obtained when

If a population growing exponentially double in size in $3$ year, what is intrinsic rate of increase $(r)$ of the population ? $(e = 2.71828)$

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